Explanipedia

Letter of Intent: The Forward Physics Facility Open

Luis A. Anchordoqui, John Kenneth Anders, Akitaka Ariga, Tomoko Ariga, David Asner , et al. · 2025

The Forward Physics Facility (FPF) is a proposed extension of the HL-LHC program designed to exploit the unique scientific opportunities offered by the intense flux of high energy neutrinos, and possibly new particles, in the far-forward d…

Precise Determination of the Strong Coupling Constant from Dijet Cross Sections up to the Multi-TeV Range Open

NULL AUTHOR_ID, D. Britzger, Xuan Chen, Johannes Gäßler, A. Gehrmann–De Ridder , et al. · 2025

We determine the value of the strong coupling αs and study its running over a wide range of scales as probed by the dijet production process at hadron colliders, based on a next-to-next-to-leading-order QCD analysis of LHC dijet data. From…

Design of the ECCE detector for the Electron Ion Collider Open

J.K. Adkins, Y. Akiba, A. Albataineh, M. J. Amaryan, I. C. Arsene , et al. · 2025

Precise Determination of the Strong Coupling Constant from Dijet Cross Sections up to the Multi-TeV Range Open

Fazila Ahmadova, D. Britzger, Xuan Chen, Johannes Gäßler, A. Gehrmann–De Ridder , et al. · 2024

We determine the value of the strong coupling $α_\text{s}$ and study its running over a wide range of scales as probed by the dijet production process at hadron colliders, based on an NNLO QCD analysis of LHC dijet data. From a large subse…

The azimuthal correlation between the leading jet and the scattered lepton in deep inelastic scattering at HERA Open

I. Abt, R. Aggarwal, V. Aushev, Olaf Behnke, A. Bertolin , et al. · 2024

The azimuthal correlation angle, $$\Delta \phi $$ , between the scattered lepton and the leading jet in deep inelastic $$e^{\pm }p$$ scattering at HERA has been studied using data collected with the ZEUS detector at a centre-of-m…

The azimuthal correlation between the leading jet and the scattered lepton in deep inelastic scattering at HERA Open

ZEUS Collaboration, I. Abt, R. Aggarwal, V. Aushev, O. Behnke , et al. · 2024

The azimuthal correlation angle, $\Delta\phi$, between the scattered lepton and the leading jet in deep inelastic $e^{\pm}p$ scattering at HERA has been studied using data collected with the ZEUS detector at a centre-of-mass energy of $\sq…

Measurement of jet production in deep inelastic scattering and NNLO determination of the strong coupling at ZEUS Open

I. Abt, R. Aggarwal, V. Aushev, Olaf Behnke, A. Bertolin , et al. · 2023

A new measurement of inclusive-jet cross sections in the Breit frame in neutral current deep inelastic scattering using the ZEUS detector at the HERA collider is presented. The data were taken in the years 2004–2007 at a centre-of-mass ene…

Electron-Hadron Scattering resolving Parton Dynamics Open

N. Armesto, C. Gwenlan, Anna Staśto · 2023

Measurement of the cross-section ratio σψ(2S)/σJ/ψ(1S) in exclusive photoproduction at HERA Open

I. Abt, M. Adamus, R. Aggarwal, V. Aushev, Olaf Behnke , et al. · 2022

A bstract The exclusive photoproduction reactions γp → J/ψ (1 S ) p and γp → ψ (2 S ) p have been measured at an ep centre-of-mass energy of 318 GeV with the ZEUS detector at HERA using an integrated luminosity of 373 pb − 1 . The measurem…

Search for effective Lorentz and CPT violation using ZEUS data Open

ZEUS collaboration, I. Abt, R. Aggarwal, V. Aushev, O. Behnke , et al. · 2022

Lorentz and CPT symmetry in the quark sector of the Standard Model are studied in the context of an effective field theory using ZEUS $e^{\pm} p$ data. Symmetry-violating effects can lead to time-dependent oscillations of otherwise time-in…

NNLO interpolation grids for jet production at the LHC Open

D. Britzger, A. Gehrmann–De Ridder, T. Gehrmann, E. W. N. Glover, C. Gwenlan , et al. · 2022

Fast interpolation-grid frameworks facilitate an efficient and flexible evaluation of higher-order predictions for any choice of parton distribution functions or value of the strong coupling $α_s$. They constitute an essential tool for the…

The PDF4LHC21 combination of global PDF fits for the LHC Run III* Open

Richard D. Ball, J. M. Butterworth, A. M. Cooper-Sarkar, Aurore Courtoy, T. Cridge , et al. · 2022

A precise knowledge of the quark and gluon structure of the proton, encoded by the parton distribution functions (PDFs), is of paramount importance for the interpretation of high-energy processes at present and future lepton–hadron and had…

Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions Open

I. Abt, R. Aggarwal, Vladimir Andreev, M. Arratia, V. Aushev , et al. · 2022

Working Group I: Parton distributions: Summary report for the HERA LHC Workshop Proceedings Open

M. Dittmar, Juan Rojo, H. Böttcher, J. A. M. Vermaseren, M. Ciafaloni , et al. · 2022

We provide an assessment of the impact of parton distributions on the determination of LHC processes, and of the accuracy with which parton distributions (PDFs) can be extracted from data, in particular from current and forthcoming HERA ex…

xFitter: An Open Source QCD Analysis Framework - A resource and reference document for the Snowmass study Open

The xFitter Developers' Team, NULL AUTHOR_ID, Hamed Abdolmaleki, S. Amoroso, V. Bertone , et al. · 2022

We provide an overview of the xFitter open-source software package, review the general capabilities of the program, and highlight applications relevant to the Snowmass study. An updated version of the program (2.2.0) is available on CERN G…

Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier Open

S. Amoroso, A. Apyan, N. Armesto, R.D. Ball, V. Bertone , et al. · 2022

An overwhelming number of theoretical predictions for hadron colliders require parton distribution functions (PDFs), which are an important ingredient of theory infrastructure for the next generation of high-energy experiments. This whitep…

Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions Open

H, Zeus collaborations, NULL AUTHOR_ID, I. Abt, R. Aggarwal , et al. · 2021

The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in 2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of the HERA data on inclusive deep inelastic $ep$ scattering together wit…

Azimuthal correlations in photoproduction and deep inelastic ep scattering at HERA Open

I. Abt, R. Aggarwal, V. Aushev, Olaf Behnke, A. Bertolin , et al. · 2021

Erratum to: Calculations for deep inelastic scattering using fast interpolation grid techniques at NNLO in QCD and the extraction of $$\alpha _{\mathrm {s}}$$ from HERA data Open

D. Britzger, James Currie, A. Gehrmann–De Ridder, T. Gehrmann, E. W. N. Glover , et al. · 2021

Erratum to: Determination of the strong coupling constant $${{\varvec{\alpha _{\mathrm{s}} (m_{\mathrm{Z}})}}}$$ in next-to-next-to-leading order QCD using H1 jet cross section measurements Open

Vladimir Andreev, A. Baghdasaryan, K. Begzsuren, A. Belousov, Valerio Bertone , et al. · 2021

Azimuthal correlations in photoproduction and deep inelastic $\boldsymbol{ep}$ scattering at HERA Open

I. Abt, R. Aggarwal, V. Aushev, Olaf Behnke, A. Bertolin , et al. · 2021

Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity $ep$ scattering at a centre-of-mass energy $\sqrt{s}=318$ GeV with the ZEUS detector at HERA. Two- and four-particle azimuthal corre…

Erratum to: Determination of the strong coupling constant αs(mZ)in next-to-next-to-leading order QCD using H1 jet cross section measurements Open

A. Lebedev, G. Nowak, V. Dodonov, C. Vallée, K. Daum , et al. · 2021

Two-particle azimuthal correlations as a probe of collective behaviour in deep inelastic ep scattering at HERA Open

I. Abt, L. Adamczyk, R. Aggarwal, V. Aushev, O. Behnke , et al. · 2020

Standard Model physics at the HL-LHC and HE-LHC Open

P. Azzi, O. Hindrichs, P. Tan, Jan Fiete Grosse-Oetringhaus, E. W. N. Glover , et al. · 2019

The successful operation of the Large Hadron Collider (LHC) and the excellent performance of the ATLAS, CMS, LHCb and ALICE detectors in Run-1 and Run-2 with $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV as well as the gian…

Calculations for deep inelastic scattering using fast interpolation grid techniques at NNLO in QCD and the extraction of α s from HERA data Open

D. Britzger, James Currie, A. Gehrmann–De Ridder, T. Gehrmann, E. W. N. Glover , et al. · 2019

Study of Transfer Matrix for high-x ZEUS data Open

C. Gwenlan, R. Aggarwal · 2019

The knowledge of the proton parton densities for large x is very important in the search for new physics signals at the LHC. For Bjorken-x larger than 0.6 they are, however, poorly constrained by the data used in extracting the proton part…

Charm production in charged current deep inelastic scattering at HERA Open

I. Abt, L. Adamczyk, R. Aggarwal, V. Aushev, O. Behnke , et al. · 2019

Standard Model Physics at the HL-LHC and HE-LHC Open

P. Azzi, S. Farry, P. Nason, A. Tricoli, D. Zeppenfeld , et al. · 2019

The successful operation of the Large Hadron Collider (LHC) and the excellent performance of the ATLAS, CMS, LHCb and ALICE detectors in Run-1 and Run-2 with $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV as well as the gian…

Standard Model Physics at the HL-LHC and HE-LHC Open

P. Azzi, S. Farry, Paolo Nason, I. M. Trigger, D. Zeppenfeld , et al. · 2019

The successful operation of the Large Hadron Collider (LHC) and the excellent performance of the ATLAS, CMS, LHCb and ALICE detectors in Run-1 and Run-2 with $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV as well as the gian…

Charm production in charged current deep inelastic scattering at HERA Open

I. Abt, L. Adamczyk, R. Aggarwal, V. Aushev, O. Behnke , et al. · 2019

Charm production in charged current deep inelastic scattering has been measured for the first time in e$^±$p collisions, using data collected with the ZEUS detector at HERA, corresponding to an integrated luminosity of 358 pb$^{−1}$. Resul…

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